KR101332570B1 - Pipe unit and anti-leakage method using thereof - Google Patents

Abstract

The present invention relates to a pipe unit and a water leak blocking construction method of pipes constructed by using the pipe unit and, more specifically, to the pipe unit and the water leak blocking construction method of the pipes constructed by using the pipe unit, capable of blocking water leak with a simple method without excavation in case the water leak is generated at a gap between the pipe units. A resin concrete pipe unit forming a long pipe by being mutually connected comprises: a main body in a pipe shape; a diameter expansion unit formed at a first end of any one side of the main body and including an accommodating unit surrounding the pipe unit and a contact unit to which the other pipe unit is attached when it is connected to the other pipe unit; a sealing member formed at a second end which is the other side end of the first end and maintaining airtightness when it is connected to the other pipe unit; a combining member formed at the outer surface of the accommodating unit to maintain a connection state when it is connected to the other pipe unit; and a reinforcing pipe including an inlet formed at the second end, a first discharge hole formed at the contact unit, and a second discharge hole formed at the accommodating unit and formed inside the main body to connect the inlet, the first discharge holes, and the second discharge holes.

Description

Piping unit and anti-leakage method using technique

The present invention relates to a piping unit and a construction method for preventing leakage of a pipe constructed by using the piping unit, and more particularly, when leakage occurs in a gap between the piping units, the leakage of the leakage is relatively simple without excavation. The present invention relates to a possible piping unit and a method for preventing leakage of a pipe constructed by using the piping unit.

Concrete pipes have been used, but concrete is vulnerable to acids, and if wastewater containing acidic material flows through concrete pipes, the structure of cement and aggregates may be broken and cracks may occur in the pipes. When a crack occurs, waste water leaks through the crack and contaminates the soil. In order to solve this problem, resin concrete pipe was developed, and resin concrete pipe was formed by centrifugal molding method using iron wire and a material mixed with aggregate such as gravel and sand and calcium carbonate or fly ash and unsaturated polyester resin. .

A cross-sectional view of the resin concrete pipe is shown in FIG. In addition to both ends as shown in Fig. 1, the inner and outer diameters are the same, and one end (the end located on the right side of the drawing) is provided with a groove 1, and the other end (the end located on the left side in the drawing) is connected. (Or one end of the other pipe to be connected) is formed with a diameter expanding portion (2) which is in contact with, the diameter expanding portion (2) is one end of the other pipe and the junction portion (3) in contact with one end of the other pipe It is composed of a receiving portion 4 for receiving the wrapped state, the inner diameter of the receiving portion 4 is configured so that the pipe is slightly larger than the outer diameter to easily accommodate the end of the other pipe.

2 is a cross-sectional view illustrating the connection portion of the resin concrete pipes shown in FIG. 1 connected to each other. As shown in FIG. 2, the groove 1 is provided with a sealing ring 6 for sealing, and one end of the resin concrete pipe shown in the left side of the drawing with the rubber ring 6 filled therein ( The grooved end) is inserted into the joint portion 3 of the resin concrete shown on the right side of the drawing. As shown in FIG. 2, when the two pipes are stacked, the gap between the two pipes at the joint is filled with mortar (7), and the steel plate band (5) is wound around the outside of the receiving part (4) and tensioned. Will be fixed.

The service life of these resin concrete pipes is designed to be more than 30 years. After 10 to 15 years, the steel plate band 5 is corroded, and the supporting force by the steel plate disappears, and due to the small force acting on the connection part of the pipes in the ground. There is also a problem that the connection is broken. When the connection part is broken, water is leaked at the broken part naturally, and when the pipe is used as a sewage pipe, it pollutes the surrounding soil, and when used as a water pipe, waste of water occurs. In order to overcome this problem, a stainless steel plate may be used instead of the iron plate band 5, but even in this case, it is reported that the bearing capacity can be secured until the design service life.

In order to repair such leaks, it is necessary to expose the underground pipes to repair them, which requires excavation work. This is not only a very cumbersome work, but also requires the indirect cost of the social network because the road must be blocked. There was a big problem.

The present invention was derived to solve the problems of the background art, the problem to be solved by the present invention is a resin concrete pipe that can be repaired and reinforced by a simple method when the steel plate band is corroded leak occurs and reinforcement using the same To provide a way.

The present invention as a means of solving the problem,

In a resin concrete piping unit connected to each other to form a long pipe,

A tubular body;

An enlarged diameter portion provided at a first end, which is an end of the main body, and including a junction portion in contact with the other piping unit and a receiving portion surrounding the piping unit when connected to the other piping unit;

Sealing means provided at a second end, which is the opposite end of the first end, to maintain a seal when engaging with another piping unit;

Coupling means provided on an outer circumferential side of the accommodation portion so as to maintain a coupling state when engaging with another piping unit; And

In order to connect the inlet provided in the inner diameter portion of the second end side and the first outlet provided in the junction portion and the second outlet provided in the receiving portion, the connector, the inlet, the first outlet, the second outlet Reinforcing pipe which is a pipe provided in the main body; It provides a resin concrete piping unit comprising a.

Wherein the sealing means comprises:

It is preferable that it is a sealing ring made of an elastically deformable material inserted into the groove and a groove formed along the circumferential direction on the outer diameter side of the second end side.

It is preferable to further provide a temporary sealing means for temporarily sealing the inlet.

The reinforcing pipe is provided on the second end side and includes a connector that is provided at a position that can be in communication with the first outlet of the other piping unit when coupled with the other piping unit, the connector and the inlet, the first outlet and the second It may also be configured to connect the outlets to one another.

Further, according to the present invention,

In the leak-proof construction method of the pipe constructed using the resin concrete piping unit of any one of claims 1 to 4 of the present invention,

Temporary formwork installation step of installing a temporary formwork in the interior of the pipe side leakage occurs;

Filling the gaps between the piping units in which the leakage occurs by pressing and injecting mortar through an injection hole provided in a reinforcing pipe of a piping unit having a receiving unit among the piping units located in the connection unit;

Curing step of curing the mortar injected in the filling step;

It provides a pipe leakage blocking construction method comprising the temporary mold removing step of removing the temporary mold after the curing step is completed.

The temporary form may use a rubber tube whose outer diameter can be inflated beyond the inner diameter of the main body.

On the other hand, when the piping unit is a piping unit according to claim 3

In the filling step, a gap between the pipe units in which the leak occurs is injected by pressurizing the mortar through an injection hole provided in the reinforcing pipe of the piping unit with the receiving unit of the pair of piping units located in the connection portion where the leak occurred. Infill can be made by construction,

If the piping unit is a piping unit according to claim 4,

The filling step may be performed by filling a gap between the pipe units in which the leak occurs by pressing the mortar through the injection port provided in the reinforcing pipe of the piping unit connected to the manhole.

According to the present invention, when the pipe is aged and the connection part is damaged and leaks occur, the piping unit and the pipe leak blocking construction can be prevented from further leaks by reinforcing the leaked part in a relatively simple manner without an attachment work. Provide a method.

1 is a cross-sectional view of a conventional resin concrete piping unit.
2 is a cross-sectional view of the connection unit of the piping unit shown in FIG.
3 is a cross-sectional view of a piping unit according to one embodiment of the present invention.
4 is a cross-sectional view of a piping unit according to another embodiment of the present invention.
FIG. 5 is a view for explaining a method of reinforcing a leak of a pipe constructed with the pipe unit shown in FIG. 3. FIG.
FIG. 6 is a view for explaining a method of reinforcing a leak of a pipe constructed with the pipe unit shown in FIG. 4. FIG.

Hereinafter, with reference to the drawings will be described with respect to the specific details for carrying out the present invention by explaining the piping unit and the pipe leakage blocking construction method according to an embodiment of the present invention.

3 is a cross-sectional view of a piping unit according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view of a piping unit according to another embodiment of the present invention.

First, the first embodiment of the piping unit shown in FIG. 3 will be described.

Piping unit according to the present embodiment is configured to include a main body 100, the diameter expanding portion 2, the reinforcing pipe 10, sealing means, coupling means.

The main body 100 is made of a tubular resin concrete. The body can be seen similarly to the piping body shown in FIG. 1 and is about 2-3 meters in length. The main body 100 has two ends, and an end on the left side of the drawing is called a first end, and an end on the right side is called a second end.

The diameter expanding portion 2 is provided on the first end side of the main body 100, and is composed of a joining portion 3 and a receiving portion 4.

The junction part 3 is a structure of the surface side which contacts the 2nd end part of the piping unit connected when it is connected with another piping unit. The receiving portion 4 is a portion surrounding the second end of the piping unit to be connected when connected to the other piping unit. Since the junction part 3 and the accommodation part 4 are substantially the same as the junction part and the accommodation part included in the conventional piping unit shown in FIGS. 1 and 2, further detailed description will be omitted.

The sealing means is provided on the second end side of the main body 100 as a configuration for holding the seal when connecting with other piping unit (part wrapped around the receiving portion provided on the first end of the other piping unit) In this embodiment, the groove 1, the sealing ring 40 and the mortar (not shown) (see Fig. 5). The sealing ring 40 is made of a rubber material that can be elastically deformed, and can be combined with other piping units. When the contact with the receiving portion is deformed compression, it is possible to maintain the sealed state by the restoring force. The mortar is filled in the space of the connection of the two piping units as shown on the right side of the main body in FIG.

The coupling means 50 is configured to maintain a coupling state when the piping unit is coupled with another piping unit, and is provided on an outer circumferential side of the accommodation part to maintain a state in which the accommodation part accommodates the second end of the other piping unit. In the present embodiment, the coupling means is denoted by 50 in FIG. 5, which is the same configuration as the forced band denoted by 5 in FIG.

The reinforcement pipe 10 is a pipe embedded in the main body 100 and includes an injection hole 11, a first discharge hole 12, and a second discharge hole 13, and the injection hole 11 and the first discharge hole. (12) and the second outlet (13).

In the case of this embodiment shown in Figure 3 the injection hole 11 is provided on the inner diameter side of the main body 100, in the case of the embodiment shown in Figure 4 the injection hole 11 end surface of the second end side of the main body 100 It is comprised so that it may communicate with the 1st outlet of the piping unit arrange | positioned at and connected to. There is a slight difference in the construction method of water leakage blocking depending on the position of the inlet 11, which will be described later.

Hereinafter, a leak blocking construction method in the case where water leak occurs in a pipe constructed using the pipe unit having the above-described configuration will be described.

FIG. 5 is a view for explaining a method of reinforcing a leak of a pipe constructed with the pipe unit shown in FIG. 3, and will be described first.

Leakage blocking construction method according to this embodiment consists of a temporary formwork installation step, filling step, curing step and temporary formwork removal step.

First, when a leak occurs, it is necessary to know the position of the leaked pipe.

To find the location of the leaked pipe, install a metal wire or attach a magnetic marker on the pipeline, install a flow meter at regular intervals, and compare the flow of inflow and outflow to identify the location of the broken pipe. Method, to install the CCTV in the pipeline to analyze the screen shot on the CCTV to determine the location of the damaged tube, the position of the leaked pipe by attaching the detection tape or the detection line presented in Patent No. 10-869052 How to figure it out. The leak point can be identified by an appropriate method among these methods, and since the inner diameter of the main body 100 of the piping unit is usually about 80 cm to 120 cm, a person can directly enter the leak point and visually check the leak point. You can also identify leaks using (radio-controlled vehicles).

As described above, leakage occurs when the coupling state of the connecting units of the piping units connected to each other is not properly maintained as the coupling unit 50 is aged, and the mortar poured into the sealing means is broken and a gap is formed between the piping units.

The temporary formwork installation step is to install a temporary formwork inside the connection side of the piping unit in which the leak occurs. As will be described later, the mortar is injected into the connection part where the leak occurs, and the gap is filled. If the mold is not installed, the mortar may flow toward the inside of the main body 100, thereby installing the formwork. In this embodiment, the temporary form uses a rubber tube (30). When the tube 30 is inflated, the outer diameter of the tube 30 is larger than the diameter of the main body 100, and air is injected into the tube 30 to expand the tube 30 to be used as a formwork. Installation of the temporary formwork is performed by the operator directly entering the pipe through the manhole.

The filling step is a step of filling the mortar 20 so that no leakage occurs at the connection portion in which the leakage occurs. In the filling step, the mortar 20 is pressurized through the inlet 11 of the reinforcing pipe 10 embedded in the piping unit in which the receiving part is located in the connection unit of the piping unit in which the leak occurs. This fills the gap in the piping unit connection where the leak occurred. If there is a crack between the pressurized and injected piping units, as well as the mortar that is poured by the sealing means, the gap is evenly filled. The mortar 20 injected through the inlet 11 is simultaneously discharged through the first outlet 12 and the second outlet 13, as shown in FIG. 5, and the mortar discharged through the first outlet 12. 20 fills the gap between the piping units, and fills the gap between the mortar piping unit discharged through the second outlet 13 and the soil surrounding the piping unit. (The piping unit is buried underground, so the soil surrounds its outer periphery)

Since the filling of the mortar in the filling step should be made in the interior of the main body 100, the operator must enter the interior of the main body 100 to perform the mortar injection work. At this time, if the position of the piping unit to be worked is close to the manhole, the worker only needs to enter the hose for injecting mortar and injects mortar through the hose from the outside. If the position of the piping unit to be worked is far from the manhole, the mortar In order to mix the components and the equipment such as the compressor into the inside of the main body to work, or as described above, the operator can carry only the hose to transfer the mortar and enter the mortar from the outside.

The curing step is to cure the mortar injected in the filling step.

The temporary mold removing step is a step of removing the temporary mold in a state where the mortar is sufficiently hardened after the curing step is completed. In this embodiment, the operator may remove the wind of the tube 30 and put away.

Hereinafter, a leak blocking construction method illustrated in FIG. 6 will be described.

FIG. 6 is a view for explaining a method of reinforcing a leak of a pipe constructed with the pipe unit illustrated in FIG. 4.

The second embodiment of the leak-blocking construction method shown in FIG. 6 is mostly the same as the previous embodiment and only differs in the filling step, and thus will be described in detail only. (The difference between these filling methods comes from differences in the structure of the reinforcing pipes.)

In the present embodiment, the filling step is different from injecting mortar into the inlet of the piping unit disposed at the crack in the previous embodiment, as shown in FIG. 6, through the inlet of the piping unit adjacent to the manhole 200 as shown in FIG. 6. 20). In FIG. 6, the configuration indicated by reference numeral 300 is equipment for injecting by mixing and pressing mortar, and reference numeral 310 is a pipe (or hose) for injecting mortar.

The mortar 20 injected through the inlet of the piping unit adjacent to the manhole 200 is injected to the point where the leakage occurs along the reinforcing pipe 10 disposed inside the piping unit. At this time, since the temporary mold is not installed in the case of the leaking portion, some mortar falls into the interior of the main body 100 through a minute gap between the piping units, and the temporary mold is installed at the point where the leak is formed. In this case, since the temporary mold prevents the mortar from flowing into the inside of the main body (cavities), all gaps between the piping units are filled to prevent leakage.

In the leak blocking construction method (first embodiment) shown in FIG. 5, a worker may need to install a temporary formwork and a mortar injection work at the same time. This may cause inconvenience to the worker. On the other hand, the leakage blocking construction method shown in FIG. 6 (the second embodiment) has an advantage that it is easy to work because all the work is performed in the manhole or the ground except for the temporary formwork in the interior of the pipe.

However, in the first embodiment, the mortar is injected only to the reinforcing pipe provided in the piping unit connected to the point where the leak occurred. In the second embodiment, the mortar is injected from the piping unit directly connected to the manhole to the piping unit at the location of the leak. Since the mortar must be injected, the amount of mortar injected is not only large, but the pressure to be applied also has a big disadvantage. As such, the first and second embodiments are construction methods having advantages and disadvantages and can be appropriately selected according to the situation of the site.

While the above has provided specific details for carrying out the present invention by describing some preferred embodiments of the present invention, the technical idea of the present invention is not limited to the described embodiments, and is not contrary to the technical idea of the present invention. It can be embodied in various forms of piping unit and leak prevention construction method within the scope.

100:
10: reinforcing pipe
20: Mortar

Claims (8)

In a resin concrete piping unit connected to each other to form a long pipe,
A tubular body;
An enlarged diameter portion provided at a first end, which is an end of the main body, and including a junction portion in contact with the other piping unit and a receiving portion surrounding the piping unit when connected to the other piping unit;
Sealing means provided at a second end, which is the opposite end of the first end, to maintain a seal when engaging with another piping unit;
Coupling means provided on an outer circumferential side of the accommodation portion so as to maintain a coupling state when engaging with another piping unit; And
An injection hole provided on the side of the second end, a first discharge hole provided on the side of the junction, and a second discharge hole provided on the receiving part, and configured to connect the injection hole, the first discharge port, and the second discharge port to each other. Reinforcing pipe which is a pipe provided; Resin concrete piping unit comprising a.
The method of claim 1,
The sealing means,
Resin concrete piping unit, characterized in that the groove is formed along the circumferential direction on the outer diameter side of the second end side and a sealing ring of elastically deformable material inserted into the groove.
The method of claim 1,
Resin concrete piping unit characterized in that the inlet is formed on the inner diameter side of the body.
The method of claim 1,
And the inlet of the reinforcing pipe is configured to be in communication with the first outlet of the other piping unit when coupled with the piping unit.
In the leak-proof construction method of the pipe constructed using the resin concrete piping unit of any one of claims 1 to 4,
Temporary formwork installation step of installing a temporary formwork inside the pipe on the connection side leakage occurs;
Filling the gaps between the leaking piping units by pressurizing and injecting mortar through the inlet of the reinforcing pipe to the gaps generated between the piping units located in the leaking connection portion;
Curing step of curing the mortar injected in the filling step;
And a temporary mold removing step of removing the temporary mold after the curing step is completed.
The method of claim 5,
The temporary form is a pipe leakage blocking construction method, characterized in that the outer diameter is a rubber tube that can be inflated beyond the inner diameter of the main body.
The method of claim 5,
The piping unit is a piping unit according to claim 3,
The filling step,
By filling the mortar through the injection port provided in the reinforcing pipe of the piping unit with the receiving unit of the pair of piping units located in the connection portion where the leak occurs, filling the gap between the leaked piping units Piping leakage blocking construction method.
The method of claim 5,
The piping unit is a piping unit according to claim 4,
The filling step,
A method for preventing a pipe leakage construction comprising filling a gap between pipe units in which the leak occurs by pressing and injecting mortar through an injection hole provided in a reinforcing pipe of a pipe unit connected to a manhole.

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